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SparkFun Electronics will be closed in observance of memorial day on Monday, May 29th. We will resume normal business hours on Tuesday, May 30th. Any orders placed after 2pm Mountain Time on Friday, May 26th will process and ship out on Tuesday, May 30th.

Here I've got 60 USB charger power supplies wired in parallel, just to see what happens.

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How a hamster ball and Blynk app can detect not only motion, but perhaps something paranormal?

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A lot of the questions we field are related to accomplishing something cheaper via DIY. Until recently, chances of succeeding were variable, but things are starting to change.

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A tour of our humble R&D abode and some of the projects we've been cooking.

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In this Enginursday, we'll explore some of the problems that can creep up when connecting I2C devices

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Amazon has released an example allowing you to create an Alexa endpoint on a Raspberry Pi 3 (or 2B). It's free and open source, so you can tear it apart, see how it works and modify it as you see fit!

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This post explores how to use the power control features of the Battery Babysitter to make a product with the features we expect from portable embedded electronics.

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As I've been on location the past couple months attached to a secret project, I decided this week's build was going to be a motion detector I could use in the field.

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The market for connectors is enormous. Let's discuss how to find the connector that works for you.

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Learn the basics of SPICE simulation with Linear Technologies' free LTspice program.

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Our next installment in the Synth Saga fits in the palm of your hand!

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Setting up a sensor to text you if your basement is in danger of flooding

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A brief overview of the new Raspberry Pi-based data-logging web server from Atlas Scientific

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Looking to emulate modular synthesizers with the Teensy Audio platform? Read on!

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We've created an iOS and Android app that calculates if the power requirements of a linear regulator cause the temperature of the device to rise to unsafe, component-damaging levels.

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Using slow shutter-speed photography to capture sound waveforms

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Recent Blog Comments

Right. See the tip detail picture on the product page. (xtopher also linked directly to the picture, above.)
Nope, they are correct. There are tiny (for lack of a better word) [prongs at the…
I do not plan to do this but it was interesting to see a bit of insanity and science at the same time. I have wondered about combining…
Although the text talks about 45° angle on the tweezers, they sure look like straight tweezers in the pictures (both here and on the item’s…
I’d like to try that! Ran out of time on this one though. I was thinking, I have 6 banks that can do 20A each, so why not 30V and 20A? That…
If there was no sustained arc with 5v… how would those supplies hold up to being placed in series?
Connect a load with lots of sodium to it like a pickle or a hot dog.
Don’t worry, I saved it for you. It’s on your desk
Marshall noooo, we already have a fork shortage in this building.

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